/Engine/Source/Runtime/GeometryCore/Public/CompGeom/ConvexDecomposition3.h
Initialize convex decomposition with a triangle index mesh
void InitializeFromIndexMesh ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const FVector3f > Vertices, [TArrayView](API\Runtime\Core\Containers\TArrayView)< const FIntVector > Faces, bool bMergeEdges, int32 FaceVertexOffset )